一聲 yīshēng a sound Origin Definitions Defs Strokes Stroke Words Sentences Sents yīshēng a sound 一 yī numeral one one; the number 1; single; alone声 聲 shēng measure word measure word for sounds used for sounds and the number of times a voice is used, as in "a cry" or "shout twice"yīshēng first tone 一 yī numeral one one; the number 1; single; alone声 聲 shēng tone (bound form) tone of a character or syllable; the musical pitch of a sound